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CBSE Class 10 Answered

If √2 sin x^2 - 1= 0, find the value of x.
Asked by Nimmi | 19 Jan, 2019, 04:52: PM
Expert Answer
begin mathsize 12px style square root of 2 space sin open parentheses x squared close parentheses space minus space 1 space equals space 0
sin left parenthesis x squared right parenthesis space equals space fraction numerator 1 over denominator square root of 2 end fraction space.............. left parenthesis 1 right parenthesis
w e space k n o w comma space sin straight pi over 4 space equals space fraction numerator 1 over denominator square root of 2 end fraction space............. left parenthesis 2 right parenthesis
b y space c o m p a r i n g space e q n. left parenthesis 1 right parenthesis space a n d space left parenthesis 2 right parenthesis comma space w e space h a v e space x squared space equals space straight pi over 4 space space comma space h e n c e space space x space equals space fraction numerator square root of straight pi over denominator 2 end fraction
end style
 
Answered by Thiyagarajan K | 19 Jan, 2019, 06:23: PM
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